A passenger on a plane photographed a UFO near LA

On September 22, 2014, a passenger on a plane has photographed several UFOs while his airplane was headed toward Los Angeles airport. What is it?

Witness report:

I was taking random photo's outside my plane window. There was a quick very very bright light as I was taking the photo. The light lasted a millisecond. I almost thought I did not see anything till I looked at the picture. I was in 747 heading to LA airport when it happened.